Sergey Aleynikov began working for Goldman in May of 2007 as "vice president for equity strategy." And then he left to go to some firm in Chicago and then the FBI arrested him for "theft of trade secrets" because, they claim, he uploaded all the fancy magical automated trading codes and files to some German website.

According to the affidavit:

"certain features of the [code], such as speed and efficiency by which it obtains and processes market data, gives the Financial Institution a competitive advantage among other firms that also engage in high-volume automated trading.The Financial Institution further believes that, if competing firms were to obtain the [code] and use its features, the Financial Institution's ability to profit from the [code]'s speed and efficiency would be significantly diminished."